Harley-Davidson · Engine & Filters

Harley-Davidson engine and filter parts

Oil filters, air filters, spark plugs and sump hardware. Motorcycles share oil between engine, gearbox and usually a wet clutch, so oil and filter quality matter more than on a car. On Harley-Davidson models, always confirm the part against the exact model year before ordering.

Pick your Harley-Davidson model

Fitment reference

Oil specJASO MA2, viscosity per the owner's manual
FilterSpin-on cartridge or paper element, model-specific
Interval5,000-10,000 km depending on oil type and use
BrandHarley-Davidson (USA)
Models covered9
Install time40 min · Easy

Harley-Davidson engine and filter parts available now

Harley-Davidson Oil Filter and Sump Plug KitVerified fit
Engine & Filtersvia MotorcycleID

Harley-Davidson Oil Filter and Sump Plug Kit

OE-spec oil filter with crush washer and magnetic sump plug.

$27.00View
Harley-Davidson High-Flow Air FilterVerified fit
Engine & Filtersvia MotorcycleID

Harley-Davidson High-Flow Air Filter

Washable, reusable high-flow air filter with cleaning kit.

$64.00View
Harley-Davidson Iridium Spark Plug SetVerified fit
Engine & Filtersvia MotorcycleID

Harley-Davidson Iridium Spark Plug Set

Iridium plugs for easier cold starts and steadier idle.

$48.00View

Before you buy

  • Use JASO MA/MA2 rated oil — car oils with friction modifiers can slip a wet clutch
  • Fit a new crush washer with every sump plug removal
  • Gap and torque spark plugs to spec; iridium plugs need no re-gapping
  • Note the odometer reading on a sticker after every change

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